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Derivative Instruments And Hedging Activities (Narrative) (Details) - Cash Flow Hedging - USD ($)
$ in Thousands
12 Months Ended
Feb. 28, 2023
Feb. 28, 2022
Designated As Hedging Instrument    
Derivative [Line Items]    
Additional reclassification from AOCL to CAF income $ 52,100  
Derivative notional amount 4,490,000 $ 3,640,000
Not Designated as Hedging Instrument | Interest Rate Swap    
Derivative [Line Items]    
Derivative notional amount 1,140,000 580,000
Derivative, Gain (Loss) on Derivative, Net $ 24,500 $ 8,800